Vacuum cleaner nozzle



VACUUM CLEANER NOZZLE Filed NOV. 13, 1935 Patented Mar. 24, 1936 UNITEDSTATES VACUUM CLEANER N OZZLE Gustaf Einar Lofgren, Riverside, Conn.,assgnor to Electrolux Corporation, Dover, Del., a corporation ofDelaware ApplicationNovember 13, 1935, Serial No. 49,472

6 Claims.

My invention relates to vacuum cleaner nozzles and more particularly tonozzles having relatively movable parts for selectively presentingsurfaces of diiferent character to a surface to be cleaned.

The object of my invention is to provide an easily operated structure ofthis character and one which glides easily on the surface to be cleaned.A

The invention will be understood from the following description of apreferred embodiment shown on the accompanying drawing forming vpart ofthis specification, and of which:

Fig. l is an elevational view of a nozzle embodying the invention; A

Fig. 2 isa bottom view of the nozzle of Fig. 1;

Fig. 3 is an end view on larger scale;

Fig. 4 is a vertical sectional view taken on the line 4-4 of Fig. 3;

Fig. 5 is a vertical sectional view taken on the line 5-5 of Fig. 4;

Fig. 6 is a sectional view taken on the line 6 6 of Fig. 3;

Fig. 7 is a vertical sectional v-iew taken on the line 1-1 of Fig. 4;

Fig. 8 is a vertical sectional view taken on the line 8 8 of Fig. 2; andV Fig. 9 is a View similar to Fig. 7 with a different relative locationof parts.

The nozzle includes a body I0, a rearwardly extending outlet connectionII, adapted to be connected by means of a tube or hose to a vacuumcleaner` suction unit, and an elongated mouth I2 defined and surroundedby lip'structure I4. The rear longitudinal lip is formed with asemi-cylindrical recess I5. Coaxial with the wall of this recess is afixed cylindrical rod I5. A sleeveA I1 forming part of a cylinderpartially surrounds rod IS. The thickness of sleeve I1 is substantiallyequal to the width of the space between the wall of recess I5 and theouter surface of rod I6.

At one end (right-hand end in Figs. 1 and 2),

.45 rod IS is cut awaysee Fig. 8) to provide a flat extension or boss I8 which slips into a correspondingly shaped recess I9 open at thebottom. A set screw 253 .extends through the lip structure and has aprojection which ts into a reces-s in extension I8 to hold rod I5 andsleeve I1 in place` at this end of the nozzle.

At the other end of the nozzle (left-hand end in Figs. 1 and 2), rod I6is supported by being held within sleeve I1,l and' sleeve I1l issupported by slidable engagement of indentations 2I thereof withcorresponding recesses 22 in a shaft 23 which is coaxial with rod I6 andsleeve I1 and passes through the lip structure. On the outside end ofshaft 23 is an operating member or handle 24 which may be `5 riveted toshaft 23 or the end of shaft 23 may merely be upset to hold theoperating member 24 thereon, shaft 23 at this point being of noncircularshape, for example-elliptical as shown in Fig. 3. 10

In assembly, sleeve I1 is rst slipped over rod I6. The shaft 23 isinserted outwardly through the lip structure and handle 24 securedthereto. The projections 2| are then slid into the recesses 22 in thehead of shaft 23. The 15 extension I8 having been slipped up into recessI9, the set screw 20 is then screwed in to hold Y the parts in assembledposition.

At the rearward corners of the nozzle and forming part of the lipstructure are wings or 20 wing portions 25. These wings have smoothsurfaces as appears in Fig. Band other iigures.

I have found that the addition of these wings with their relativelylarge contact surface provides easy gliding on a rug.` The operating 25member 24 is a section of and conforms in contour to one of thewingportions. tThe one wing portion thus performs the dual function ofgiving a bearing surface and forming a frame-work for the operatingmember 24. A 30 relatively long operating member is\ provided whereby aconsiderableleverage is avilable. 'Iv'he operating-member 24 can beeasily turned by the thumb and finger and is connected through Atheshaft 23 to turn sleeve I1 about rod I6. 35

Locking means is provided at 26. While various forms of locking meansmay be used I prefer a ball 21 spring-pressed by a spring 28 to Withinone of several pockets 29 representing the selective 'positions of therelatively movable parts 40 I6 and I1. The locking .member is preferablya separate assembly consisting of ball 21 and the spring 28 within anindividual jacket 3U which has the open end flanged inwardly topreventthe ball from leaving the jacket. 45 n 'I'he lower side o fv rod I6 isformed with transverse grooves 3l intersected by a longitudinal j groove32.l This provides adjacent combing edges 33 and '34. For forwardmovement the combing edges 33 are effective while the lugs or 5bprojections forming faces 34 act as guards with respect to the edges33.. On backward movement, the faces 34 are effective while the lugsforming faces 33 constitute guards with respect to the combing faces 34.This is the condition when 55 rod I6 is exposed to the surface to becleaned.

By moving the sleeve I l from the position shown'in Fig. 7 to theposition shown in Fig. 9, the irregular surface can be covered and thesleeve Il provides a smooth surface. The irregular surface is generallyused only to pick up threads. 'Ihe sleeve I1 as will be seen, isretractible to within the lipstructure so as to uncover the irregularsurface. By turning the operating member 24 in either direction, the oneor the other surface is exposed to the surface to be cleaned.

What I claim is:

1. A nozzle having lip structure defining a mouth and includingrelatively movable parts for selectively presenting surfaces of diierentl cleaning characteristics to a surface to be f cleaned, and anoperating member forming a section of andl conforming in contour to theadjacent portion of the lip structure and connected to one of therelatively movable parts.

2. A nozzle as dened in claim 1 in which the parts are relativelyrotatable about a given axis and the operating member is rotatable aboutthe same axis.

3. A nozzle as dened in claim 1 in which the relatively movable partsinclude a rod and a cylindrical part movable-about the rod.

4. A nozzle as defined in claim 1 in which the lip structure includeswing portions presenting relatively large surface contact portions andthe operating member forms a substantial part of one of the Wingportions.

5. A nozzle as defined in claim 1 having an elongated mouth and arearwardly extending outlet, the relatively movable parts being in arearward lip portion and extending longitudinally of the mouth, the lipstructure having rearwardly extending wings at the ends of said parts,and the operating member constituting a substantial part of one of thewings.

6. A nozzle as defined in claim 1 having a spring-pressed ball forholding the operating member in selective positions.

GrUSTAF' EINAR LOFGREN.

